KATAYAMA SEIYAKUSYO CO., LTD.
Company Information
Registration Direcotrys
Small scale production
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Reaction, Low boiling point-solvent
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Reaction, Toxic substances
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Oxidation, Heavy metal compound
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Oxidation, Peroxide
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Oxidation, Peroxide
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Rectification
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No-pressure distillation
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Vacuum distillation
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Hydrogeneration
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Hydrogeneration
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Hydrogeneration
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Oxidization, Air
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Oxidization, Halogenide
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Oxidation, Nitric acid
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Epoxidation
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Dehydrogenation
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Oxidation, Swern
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Oxidation, Swern
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Oxidation, Swern
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Oxidation, Jones
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Ammoxidation
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Reduction, Metalic hydride
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Reduction, Metalic hydride
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Reduction, Metalic hydride
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Reduction, High-pressure
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Reduction, High/Middle-pressure
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Reduction, High/Middle-pressure
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Reduction, High/Middle-pressure
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Reduction, Birch
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Reduction, Na/Li
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Reduction, Catalytic
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Reduction, Catalytic
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Reduction, Catalytic
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Dehydration
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Dehydration
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Low temperature reaction (over -20 C degree)
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Low temperature reaction (over -20 C degree)
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Low temperature reaction (over -20 C degree)
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High temperature reaction (over 200 C degree)
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High-pressure reaction
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High-pressure reaction
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High-pressure reaction
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Reaction with bad smell substances
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Reaction with bad smell substances
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Ring-Opening reaction
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Cyclization
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Cyclization
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Rearrangement
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Extraction
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Extraction
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Optical resolution
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Optical resolution
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Optical resolution
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Recrystallization
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Recrystallization
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Recrystallization
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Drying, (No-pressure/Vacuum)
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Drying, (No-pressure/Vacuum)
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Drying, (No-pressure/Vacuum)
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Filtration
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Crystallization
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Crystallization
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Crystallization
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Column purification
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Column purification
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Metal contents reduction
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Hydrogenation
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Dehydrogenation
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High-pressure hydrolysis
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High-pressure hydrolysis
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High-pressure hydrolysis
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Chlorination
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Fluorination
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Bromination
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Iodination
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Others, Halogenation
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Dehalogenation
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Nitration
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Amination
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Amination
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Acylation
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Cyanation
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Esterification
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Esterification
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Alkylation
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Alkylation
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Diazotization
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Sulfonation
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Formylation
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Etherfication
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Carbonylation
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Carbonylation
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Hydroxylation
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Racemization
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Acid chlorides
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Acid chlorides
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Acid amide
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Dealkylation
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Wittig reaction
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Ullman reaction
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Organic lithium
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Organic lithium
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Organic lithium
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Organic sodium
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Grignard reaction
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Grignard reaction
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Grignard reaction
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Other organometal
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Friedel-Crafts reaction
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Vilsmeier reaction
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Hofmann's Reaction
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Diels-Alder
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Oganic sulfur compound
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Chiral synthesis
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Chiral synthesis
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Optical resolution
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Optical resolution
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Fluorine compound
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Phosphoric compound
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Reaction, NaH
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Acetylenic chemistry
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Quaternarization of Amine, Benzyl oxide
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Production of pharmaceuticals/cosmetics
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Suzuki-Miyaura cross coupling
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Suzuki-Miyaura cross coupling
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Suzuki-Miyaura cross coupling
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Wolff-Kishner-reduction
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Absorption/Ion exchange
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Chromatography
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Crushing ( >=1mm )
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Crushing ( >=1mm )
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Crushing ( >=1mm )
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Fine Grinding ( <1000μm->=10μm )
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Fine Grinding ( <1000μm->=10μm )
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Ultrafine Grinding(<10μm)
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Purification, Preparative Isolation
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Synthesis of chemical reagent and pharmaceutical intermediate
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Custom research
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Kolbe-Schmitt reaction
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Carbon disulfide
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Carbon disulfide
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Preparative crude refining
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Oppenauer oxidation
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Sandmeyer reaction
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Leuckart reaction
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Schiemann reaction
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Decarbonation
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Decarbonation
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Tishchenko reaction
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Michael addition
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Michael addition
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Hydroxymethylation
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Hydroxyethylation
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Methylolation
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Aldol reaction
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Cannizarro reaction
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Optical microscope
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Nuclear magnetic resonance spectrometry(NMR)
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Ultraviolet-Visible spectrophotometer(UV-VIS)
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Infrared spectroscopy(IR)
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Differential thermal analysis(DTA)
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Liquid chromatography analysis(LC)
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Gas chromatography analysis
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Total organic carbon analysis(TOC)
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Karl Fischer moisture analysis
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Optical rotation
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Flexibility
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Fusing point
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Synthesis of medicinal standard product
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Synthesis of standard substance, medicinal metabolite
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Synthesis of standard substance control
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Synthesis of pesticide metabolite
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Head Space Gas Chromatography(HS/GC)
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Thermogravimetric analysis(TG)
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Halogenate, Diverse halogenating agents
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Halogenate, Thionyl chloride, Sulfuryl chloride etc
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Halogenate, Thionyl chloride, Sulfuryl chloride etc
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Halogenate, Thionyl chloride, Sulfuryl chloride etc
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Halogenate, NCS, NBS, NCI etc
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Metallic sodium, Metallic potassium
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Mercaptan
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Reduction, Nitro compound
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Reduction, Nitro compound
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Reduction, Nitro compound
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Diazo-coupling reaction
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Chlorosulfonation
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Sulfonamidation
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Nitrosation
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Organosilicon compound
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Chiral compound
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Azidation
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Allylation
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Acetalization
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Acetalization
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Amidination
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Guanidination
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Silylation
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Knoevenagel condensation
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Perkin reaction
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Hoesch reaction
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Mannich reaction
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Fries rearrangement
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Baeyer-Villiger oxidation
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Baeyer-Villiger oxidation
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Baeyer-Villiger oxidation
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Oximation
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Peptide synthesis
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Peptide synthesis
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Diazocoupling
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Mizoroki-Heck reaction
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Negishi cross coupling
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Negishi cross coupling
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Negishi cross coupling
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Migita-Kosugi-Stille cross coupling
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Sonogashira-Hagihara Cross Coupling
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Buchwald-Hartwig cross coupling
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Kumada-Tamao-Corriu cross coupling
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Glaser reaction
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Active ingredient for pharmaceutical・cosmetic ingredients
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